Bi-metal H.S.S. Hole Saw with varied toothing ensures a even cut and requires less effort. High rotational precision. Sturdy body construction. Positive chipping and cutting angles ensure more aggressive and faster cutting. The reduction in vibration and heat development during cutting achieves up to three times the tool life.
Based on our own experience this hole saw is a disappointment. The pros are that it is reasonably priced. However, the cons far outweigh the benefits .The steel is extremely flimsy, making it difficult TO cut through even the softest materials. Additionally, the teeth quickly dull and wear down after minimal use. Save yourself the frustration and invest in a higher-quality hole saw..
Pros
High-quality bi-metal construction with speed steel for durability and longevity
Cons
Requires special equipment and expertise for proper installation and use
Used to drill a hole in a sheet metal building. Teeth round like cutting stone. Cheap junk. Very disappointed considering how much money was spent on it.